Apparatus for drying bricks.



J. G. BOSS. APPARATUS FOR DRYING BRICKS. APPLIUATION FILED JULY 8, 1911.1,026,558, Patented May 14, 1912.

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'J. 0. BOSS. APPARATUS FOR DRYING BRICKS.

APPLICATION FILED JULY 8, 1911.

JOHN C. BOSS, 0F ELKHART, INDIANA.

APPARATUS FOR DRYING BRICKS.

Specification of Letters Patent.

Patented May 14, 1912.

Application filed July 8, 1911. Serial No. 637,582.

To all whom it may concern. 7

Be it known that I, JOHN C. Boss, citizen of the United States, residing.at Elkhart, Indiana, have invented certain new and useful Improvementsin Apparatus for Drying Bricks, of which the following is aspecification.

My present invention is in the nature of a refinement of or improvementsupon the apparatus which forms the subject Letters Patent of the UnitedStates #867,872, granted to me October 8, 1907, and the inventionincludes the novel features of construction and arrangement andcombination of parts hereinafter described and particularly defined inthe appended claims.

An apparatus embodying my invention is illustrated in the accompanyingdrawings in which Figure 1 is a plan view; Fig. 2 is a transversesection on line 22 of Fig. 1; and Fig. 3 is a longitudinal verticalsection on line 33 of Fig. 1. Fig. 4 is a detail of the inclined ductand connections.

According to my present construction, I provide a plurality of parallelducts 1 which are formed of hollow concrete walls 2 of any desirednumber and length with a clear space between them, as indicated at 3,open at both ends so that trucks, as 4, can be run from either end upontracks indicated at 5. These trucks are designed to carry the pallets 6which are fitted to carry any desired number of bricks piled looselythereon, so as to permit the air to pass therethrough. Each pallet ishollow, and has perforations in its top, preferably in the form ofslots, for the passage of the air from the interior of the pallet upwardinto and through the mass of bricks resting on the pallet. The palletsare of such length as to bridge the space between the duct walls andrest at their ends upon the upper faces of said duct walls, which latterare preferably widened at their tops, so as to somewhat overhang theirbases, as shown.

The pallets are provided with openings 6 in their under sides, which,when the pallets are supported by the duct walls, aline with ports orpassages 1 and thus place the ducts in communication with the interiorof the pallets. Between the adjoining faces of the duct wall and palletaround said alining openings may be placed a suitable elastic packingmaterial to effect a tightjoint.

The trucks 4 are provided with vertically adjustable platforms 4 bywhich the pallets may be held high enough to enable the trucks to be runin between the duct walls and after the pallets are properly positionedthe platforms are lowered until the pallets rest 011 said walls with theopenings alined as above described.

The drier ducts 1 are connected at their bottoms by inclined ducts whichlead to an underground main supply duct 7, which leads to a blower,which, in turn, is connected by similar ducts 8 designed to be connectedto and receive air which has been heated by passing through the hotkilns.

Arranged over each of the drier duct walls are a pair of parallelcurtains or movable shields 9 of fire proof material such as asbestos,which are supported at their upper ends by a suitable supporting framework indicated at 10, from which the curtains hang freely, the point ofsuspension of each curtain being such that it tends to hang clear of thecorresponding faces of the pallet and pile of brick carried thereby, sothat the curtains do not interfere with the placing of the pallets withtheir loads of bricks and their removal after the bricks are dried- Thecurtains are made continuous of the length ofthe drier ducts which aregenerally one hundred feet in length or over, and may conveniently bemade of layers and which are stiffened by horizontal strips 11 andvertical strips 12.

Suitable means are provided over the drier duct walls and between thecurtains for forcing the same away from each other and into contact withthe sides of the pallets and the piles of brick thereon. A means which Ihave found well adapted for this purpose is shown in the drawings inwhich -l3 designate bars extending parallel to the curtains and whichare pivotally connected by arms 14 with the roof supporting uprights 15.By dropping or forcing these bars down, the curtains may be pinnedagainst the faces of the brick and pallets, thereby preventing theescape of any of the heated air laterally, causing it to pass upwardthrough the entire pile of bricks.

I have found that when the conduits are of considerable length there isa tendency for the air to cool in its passage therethrough so that bythe time it has reached the farthest pallets it may be too cool tosecure the most effective results. To overcome this objection I place ata suitable point in each of the conduits a reheater which may be in theform of a coil of pipe as indicated at 16, which are connected outsideof the ducts and at the end with an exhaust steam pipe 17 receivingexhaust steam from the engine (not shown) of the brick plant. From thecoils exhaust steam pipes 18 lead to the opposite ends where they areprovided with branches 18 and 18 for the escape of any uncondensed steamand water of condensation respectively. As the drier ducts have inpractice preferably a ten inch drop, the pipes 18 can be laid flat uponthe bottoms of the duct, and have slope enough to carry off any water ofcondensation.

Having thus described my invention what I claim is 1. In a brick dryingapparatus, a plurality of parallel hollow walls forming drier ductsprovided with exit ports terminating in the upper faces of the wallsnear the edges thereof, a series of pallets for supporting the bricks,and having their ends resting on and supported by said hollow wallswhich pallets have openings in their upper faces for the passage of airto the bricks, and have also openings in their under faces communicatingwith the ports in the drier duct walls.

2. In a brick drying apparatus, a plurality of parallel hollow concretewalls forming drier ducts provided with exit ports terminating in theupper faces of the walls near the edges thereof, a series of pallets forsupporting the bricks, and having their ends resting on and supported bysaid hollow walls which pallets have openings in their upper faces forthe passage of air to the bricks, and have also openings in their underfaces communicating with the ports in the drier duct walls, andunderground connecting ducts leading from a source of supply of heatedair to the bottom of the drier ducts.

3. The combination with a brick drying apparatus having means forsupporting a pile of bricks and means for forcing a drying mediumvertically therethrough, of a plurality of movable shields adapted to beheld against opposite sides of the pile of brick.

4. The combination with a brick drying apparatus having means forsupporting a pile of bricks and means for forcing a drying mediumvertically therethroug of a plurality of movable shields adapted to beheld against opposite sides of the pile of brick, said shields beingfreely suspended from their upper edges.

5. The combination with a brick drying apparatus having means forsupporting a pile of bricks and means for forcing a drying mediumvertically therethrough, of a plurality of movable shields adapted to beheld against opposite sides of the pile of brick, said shields beingfreely suspended from their upper edges, and cooperating movableclamping devices for holding the partitions pressed against the sidefaces of the pile of bricks.

6. The combination with a brick drying apparatus having means forsupporting a pile of bricks and means for forcing a drying mediumverticall'y therethrough, of movable curtains or shields freelysuspended from their upper edges so as to normally hang clear of thefaces of the pile of brick, and means for holding said curtains pressedin contact with said faces.

7. In a brick drying apparatus, a plurality of parallel hollow wallsforming drier ducts provided with exit ports terminating in the upperfaces of the walls near the edges thereof, a series of pallets forsupporting the bricks, which pallets have openings in their upper facesfor the passage of air to the bricks, and have also openings in theirunder faces for communicating with the ports in the drier duct wallswhen the pallets are supported thereby, means for introducing previouslyheated air into said ducts, and air reheating means located within saidducts.

In testimony whereof, I affix my signature in presence of two witnesses.

JOHN C. BOSS.

VVit-nesses GEORGE J. MANNING, W'ILLIAM B. HILE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

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